Chemistry Particle Diagrams Flashcards

Pure Substances

• Defined as materials with a constant composition, consisting of a single type of particle.
• Types include elements and compounds.

Compound

• A pure substance formed by the chemical combination of two or more different elements.
• Examples include water (H₂O) and carbon dioxide (CO₂).

Element

• The simplest form of pure substance that consists of only one type of atom.
• Examples include oxygen (O) and gold (Au).

Mixture

• Composed of two or more substances that are not chemically bonded.
• Can be heterogeneous (different compositions) or homogeneous (uniform composition).

Types of Mixtures

• Mixtures can include combinations of elements and compounds:
  • Mixture of two compounds involves different chemical formulas without reaction.
  • A mixture of one compound and two elements consists of a compound and additional elemental materials.
  • Mixture of two elements involves two different types of atoms without forming a compound.

Key Definitions Recap

• Pure Substance: Constant composition, includes compounds and elements.
• Compound: Chemically bonded elements.
• Element: Single kind of atom, cannot be broken down.
• Mixture: Physical combination of substances, retain individual properties.

Test your knowledge of particle diagrams with these flashcards focused on pure substances, compounds, and mixtures. Each card helps you differentiate between elements and the various combinations of substances. Perfect for chemistry students looking to reinforce their understanding!